Internal-combustion engine



Feb. 16 1926.

H. N. MOORE INTERNAL coMBUsTIoN ENGINE 1924 3 Sheets-Sheet 1 Filed May 5L EL! 4 :lla di ...al

, aum-1111!! INTERNAL COMBUSTION ENGINE Filed May 5, 1924 3 SheetsSheet2 Feb. 16 1926.

H. N. MooRE INTERNAL coMBUsTloN ENGINE Filed May 5, 1924 3 Sheets-Sheet3 HIL/Mo or gk? [zml-7, Gttozmgr Patente-cl Feb. 16, 1926.

PATENT orifice.

HAROLD N. MOORE, OF KEARNEY, NEBRASKA.

INTERNAL-COMBUSTION ENGINE.

Application filed May 5,

To all whom t may concern.'

Be it known that I, HAROLD N. Moonn, citizen of the United States,residing at Kearney, in the county of Buffalo and State of Nebraska,have invented certain new and vuseful Improvements inInternal-Combustion Engines, of which the following is a specification.

This invention relates to improvements in internal combustion enginesand more particularly to an improved rotary valve mechanism for suchengines.

The invention seeks, among' other objects,

' to `provide a valve mechanism wherein t-he tic ' as a unit.

valves employed will be lie'ht in weight and efficiently lubricated.

A further object of the invention is to provide a mechanism wherein oilwill be constantly circulated through the valves from end to end thereoffor thus maintaining the valvescool atall engine speeds.

Another object of the invention is to provide a mechanism wherein thevalves will be yieldably held to cooperate with the walls of the valvechambers in such manner that the valves will eectiv-ely seal the portsofthe engine cylinders and wherein the tensioning devices employed inconjunction with theyvalves will also serve to limit the valves againstendwise movement.

And the invention seeks, as a still further object, to provide a`mechanism wherein the Vvalves may be readily "assembled uponthe 1engine head and wherein the valves and hea-d may be detached from theengine block Other and hereinafter.

In the drawings:

Figure 1 1s a side elevation showing an incidental objects will appearinternal combustion engine embodying my improved valve fmecharnism,parts being broken away and illustrated in section,

Figure 2 is a fragmentary vertical sectional l.view on the line 2 i). ofFigure 1, looking. Yin the direction of the arrows,

Figure 3 is a sectional view on the line 3-3 of Figure 1, looking inthedirection of the arrows, and showing the mechanism for rotating thevalves, Y

Figure a is a detail sectional view on the line 4-4 of Figure 1, lookingin the direction of the arrows, and particularly showing one of thetensioning devices for the valves, Figure k5 is a longitudinal sectionalview 1924. serial No. 711,173.

taken me'dially through one of the valves, and

Figure G is a detail perspective view showing the lubricant distributingchamber for the valves.

In carrying the invention into effect, I employ an engine block 10 andbolted to the block is a head 11, the head as well as the block beingsuitably mitenjacketed. In the present instance, I have shown the invention in conjunction with a four cylinder engine but as will, ofcourse, be understood, the invention is equally applic; ble to engineshaving either a greater or less nunr ber of cylinders. Near oppositesides thereof, the head 11 is, as best shown in Figures 1 and 2 of thedrawings, provided from end to end with parallel valve chambers 12having horizontal ports l?) at each of the cylinders of the block andcommunicating with the valve chambers at such ports are intake andexhaust manifolds 14 and 15 re spectively. As brought out in Figure 2,the ports 13 are located below the axes of the valve chambers and formedin the block 11 between the inner ends of the ports, are verticalopenings 1G internally threaded at their upper ends to acconin'lodatespark plugs, as conventionally shown at 1T.

Journaled in the valve chambers are tubular intake and exhaust valves 1Sand 1S) projecting at the forward ends of the block and fixed upon theforward extremities of said valves are sprockets Q0. The crank shaft ofthe engine is indicated at 21, the shaft of an approved generator at 22,and the shaft of an approved water pump at 23. Projecting from theengine block above the crank shaft 21 is a stub shaft 24 and mountedupon said shafts are sprockets 25 about which is trained a sprocketchain 26. The stub shaft 24 carries a second sprocket 27 and trainedaround said sprocket and around the sprocket 2O of the valves is asprocket chain 28, the several sprockets being so proportioned that thevalves will be rotated at half the speed of the engine crank shaft andwhile I have shown the use of sprockets and sprocket chains for drivingthe valves, still, if preferred, other mechanism may be substituted inlieu thereof. Formed on the engine block as well as the engine head nearthe forward ends thereof, are flanges 2) seating a gear case 30 havingflanges 31. bolted to the flanges 29. As

shown in Figure 3, the gear case 80 is also bolted to Vthe crank case 32of the engine so that the gear case thus encloses the sprock-v ets andsprocket chains employed for rotating the valves and provides acollecting and conducting chamber common to both valves for returningoil discharged at the forward ends vof the valves back into the crankcase at its forward end. Y

As shown in detail in Figure 5 of the drawings, the valves 18 and 19 areof imiform major diameter throughout their length and,v as will beobserved, the valves are indented at properly spaced points to formvsuitably located external passages 33 to register with the ports 13 ofthe valve chambers. The valves are further provided between saidVpassages as well as near the ends of the v'springs 40, the tension ofwhich may be varied by adjusting said bolts, and arranged upon the boltsare lock vnuts 41 securing` the bolts in adjusted position. Thefollowers 37 will thus be pressed downwardly against the balls 36 which,in turn, willpress downwardly upon the valves so that the valves will,at all times, ,be yieldably held in con tact with the bottom portions ofthe valve chan'ibers to effectually seal the ports 13 as the valves arerevolved. Furthermore, at tention is directed to the fact that the balls36 will coact with the walls of the grooves 34 for Vlocking the valvesagainst endwise movement; As will, of course, be understood, thepassages 33 of the valves are so spaced with respect to each othercircumferentially of the valves that the intake and exhaust ports of thecylinders will be opened and closed at the proper time as regards thetravel of the engine pistons.

Screwed into the rear ends of the valves are reduced nipples 42 andarranged to ceoperate vwith said nipples is an oil distributing' chamber43. Projecting from the chamber is an overhanging Hangs' 44 which is'against the beveled outer end edges of the nipples 45 for maintainingsealed joints be- .tween the distributing chamber and the valves. Drivenby the generator shaft 22 is an appropriate oil pump 48 and leading fromsaid pump is a pipe 49 attached to a' nipple 50` depending from thechamber 43. The pump 48 is connected with the engine crank case toreceive oilthei'efrom, so that, as will be seen, while the engine isrunning, a constant flow of oil will be forced into the chamber 43 andthence through the valves 18 and 19 to discharge into the gear case 30for return to the crank case. The valves will thus be effectually cooledat all engine speeds and formed through the walls of thevalves ai'esuitably spaced minute oil passages 51 through which oil may seep'forlubricating'the valves. Since oil is thus liberated into the valvechambers, the valves are, shown in Figure 1,provided at their rear endportions with spiral grooves 52 which, as the valves are revolved, willpick up .any excess oil at the rear ends of the valve chambers and feedsuchoil forwardly along the valves to thus prevent the discharge of oilat the rear extremities of the chambers.

Having thus described the invention, what I claim is: 1

1.111 an internal Vcombustion engine, a cylinder head, rotatable tubularintake and exhaust valves carried thereby and project-V ingY at one endof the head, an oil distributing chamber common to the valves, and meansfor delivering oil to saidV chamber to circulate lthrough the valves,the chamber being provided with means supportingsaid Vchamber' in spacedrelation to the said end of the head to communicate with the projectingends ofthe valves and forming' a cover overlying ysaid ends. n

2. In an internal combustion engine, a cylinder head having valvechambers opening through the ends of the head, tubular `intake andexhaust valves rotatably mounted in said chambers, an oil distributingchamber common to the valves, means for 'delivering oil to saiddistributing chamber toY circulate through the valves, the valves beingprovided with passages for liberating oil into said valve chambers, andmeans carried by the valves near the rear ends thereof for feeding oilin the chambers away from the rear ends of said chambers as the valvesrevolve.

3. In an internal combustion engine, a cylinder head havingvalve'chambers opening through the ends of the head, tubular intake andexhaust valves rotatably mounted in said chambers, an oil distributingchamber common to the valves, and means for delivering oil to saiddistributing chamber to circulate through the valves, the Vvalves ybeing provided withrpassages for liberating `the valves revolve.

il. In an internal combustion engine, a tyhnder head, rotatable tubularvalves car ried thereby and provided at their rear ends i with nipples,an oil distributing' chamber supported in spaced relation t-o the headand having nipples fitting over the nipples of the valves, packingglands carried by the latter nipples forming sealed joints between t-henipples, and means for delivering .oil to said chamber to circulatethrough the valves.

5. In an internal combustion engine, a cylinder head having valvechambers and provided at the upper sides of said chambers with openings,tubular valves liournaled in said chambers and provided with annulargrooves to coincide with said openings, balls freely received in theopenings to bear in said grooves locking the valves against endwisemovement, 'followers coacting with said balls and provided with stems,plugs adjustable in said openings and bored to slidably receive saidstems, and springs bearing between the plugs and the followers pressingthe balls downwardly against the valves and urging the valves downwardlyagainst the bottom portions of the vvalve chambers.

6. In an internal combustion engine, a cylinder head having a valvechamber, a valve journaled in said chamber, and means having rolling'engagement with the valve and locking the valve against endwise movementas well as pressing the valve downwardly against the bott-om portion ofsaid chamber.

7. In an internal combustion engine, a cylinder head having a valvechamber, a valve journaled in said chamber and provided with an annulargroove, and a spring pressed anti-friction device iitting in said groovelocking the valve against cndwise movement as well as pressing the valvedownwardly against the bottom portion of said chamber.

8. In an internal combustion engine, a

cylinder' head, rotatable tubular valves car- V ried thereby andprovided at corresponding ends thereof with nipples, an oil distributingchamber having an overhanging flange fixed to one end of the head tooverlie said nipples and supporting the chamber in spaced relation tothe head to communicate with said nipples, and means for delivering oilto said chamber to circulate through the valves.

In testimonyY whereof I allix my signature.

HAROLD N. Moons. [L 5.]

